I am running a 1 bar SD custom OS in OLSD and I was wondering about the idle tuning running this way. Basically my question is what all controls the idle running in OLSD? Is it just the main VE table?

 

Anyone...
Does the Base Running Airflow still have an effect on idle with an OLSD tune?
Does the Adaptive Idle Airflow still word with OLSD?

 

Yes, both are still running. Those tables/functions correspond to how much the PCM needs to open the IAC motor/throttle blade to maintain an idle and correlate to either MAF or VE table values.

Justin

 

Ok thanks. I'll have to do some more scanning. My afr at idle while in closed loop is right on, but when I go to open loop is seems to want to go to the lean side more than I would like to see. After I got done re-tuning my VE it was idling at about 17 afr while in OLSD.

So maybe I need to go back, scan and adjust the RAF again?